document.write( "Question 298032: I have no clue how to do matrices and I do not have a calculator in order to compute the equations any help would be great.\r
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\n" ); document.write( "\n" ); document.write( "Solve any way you can:\r
\n" ); document.write( "\n" ); document.write( "2x – y + z = 8
\n" ); document.write( "x + 2y + z = -3
\n" ); document.write( "x - 2y – z = 7\r
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\n" ); document.write( "\n" ); document.write( "Eric \n" ); document.write( "
Algebra.Com's Answer #214514 by Alan3354(69443)\"\" \"About 
You can put this solution on YOUR website!
2x – y + z = 8
\n" ); document.write( "x + 2y + z = -3
\n" ); document.write( "x - 2y – z = 7
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\n" ); document.write( "x + 2y + z = -3
\n" ); document.write( "x - 2y – z = 7
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\n" ); document.write( "2x = 4
\n" ); document.write( "x = 2
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\n" ); document.write( "-y + z = 4 eqn 1
\n" ); document.write( "-2y- z = 5 eqn 3
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\n" ); document.write( "-3y = 9
\n" ); document.write( "y = -3
\n" ); document.write( "--------
\n" ); document.write( "2 -2*(-3) - z = 7
\n" ); document.write( "8 - z = 7
\n" ); document.write( "z = 1
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\n" ); document.write( "You mentioned matrices, but I used elimination. The coefficients were too good to pass up.
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